Home / 115,923.42-159,980.34-64,933.18

Finding the Fourth Proportional to 115,923.42, 159,980.34 and 64,933.18

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Solution

The fourth proportional to 115,923.42, 159,980.34 and 64,933.18 is: 89,611.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,923.42 : 159,980.34 = 64,933.18 : x
  2. Step 2: Convert to fraction form
    115,923.42/159,980.34 = 64,933.18/x
  3. Step 3: Cross multiply
    115,923.42x = 159,980.34 × 64,933.18
  4. Step 4: Simplify right side
    115,923.42x = 10,388,032,213.68
  5. Step 5: Solve for x
    x = 10,388,032,213.68/115,923.42
  6. Step 6: Final answer
    x = 89,611.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.